3 years ago

Question 1 (1 point)

Chemistry

2 answers:

Setler79 [48]3 years ago

5 0

Answer:

Explanation:

laila [671]3 years ago

5 0

Answer:

1.5

Explanation:

1.5

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3 years ago

To determine the molarity of naoh solution, student took 3.5 g of khp (khp – potassium hydrogen phthalate; molar mass = 204.22 g

alexandr402 [8]

Hello!

First, we need to determine the concentration of KHP. This concentration is:

$\frac{3,5g KHP }{50 mL sol}* \frac{1000 mL}{1 L}* \frac{1 mol KHP}{204,22 g KHP}=0,343 M$

The neutralization reaction is:

KHP + NaOH → NaKP + H₂O

At the equivalence point:

$moles NaOH=moles KHP \\ \\ cNaOH*vNaOH=cKHP*vKHP \\ \\ cNaOH= \frac{cKHP*vKHP}{vNAOH}= \frac{0,343M*50mL}{(24,65 mL-1,85 mL)} =0,75 M$

So, the concentration of NaOH is 0,75M

Have a nice day!

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They Are All Very Good Statements But I Will Go With "A"

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I go with "A" Because In The statement it has a cause an effect, it has a positive term and a negative term, in other uses it is "A" between energy inputs and outputs, and events.

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A student mixed together 8 g of sugar, 5.20 g of salt

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u just add all the masses